<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css"></script>

<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.bundle.min.js"></script>

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css"></script>
    <style>
        
        
                     body{
                        background-color:#FAFAFA;
                     }

                     .buttonbox{
                        position: absolute;
                        left: 50%;
                        top: 50%;
                       transform: translate(-50%, -50%)
                     }
                     .spinner-button {
    border: 2px solid #000;
    display: inline-block;
    padding: 8px 20px 9px;
    font-size: 12px;
    color: #000;
    background-color: transparent
}

.btn-primary:disabled {
    color: #fff;
    background-color: #000;
    border-color: #000;
}



.spinner-button:hover {
    background-color: #000;
    border: 2px solid #000;
    color: #fff 
}

.spinner-button i {
    color: #fff
} 

.spinner-button:hover i {
    color: #fff
}

.fa{
    color:#fff;
}

.fa:hover{
    color:#fff;
}

        
    </style>
    
      <div class="buttonbox">
 
    
    <button type="button" id="btnFetch" class="spinner-button btn btn-primary mb-2">Click Me</button>

</div>
       
      <script type="text/javascript">
        
  
        
      </script> 
      
      
      <script>
                $(document).ready(function() {
    $("#btnFetch").click(function() {
      // disable button
      $(this).prop("disabled", true);
      // add spinner to button
      $(this).html(
        '<i class="fa fa-circle-o-notch fa-spin"></i> loading...'
      );
    });
});
      </script>